My first 2bbl to 4bbl swap.. scratching my head..

yea im pretty cheap too but i just dont have the time anymore to cut and weld.(new lead tech at work!).. another question all my original vacuum lines i have are they going to have to be plugged? my car is already a vacuum line nightmare considering i have two that go absolutely nowhere.(one is for heater controls so i'm going to have to tee it in to the main vac somehow). the other i have no idea.